lavf/matroskaenc: Force the minimum value for -reserve_index_space to 2.

Fixes an assertion failure: Assertion size >= 2 failed at libavformat/matroskaenc.c:298
7 years ago · d401ba6b3d
parent 81d1e1e509
commit d401ba6b3d
1 changed files with 2 additions and 0 deletions
--- a/libavformat/matroskaenc.c
+++ b/libavformat/matroskaenc.c
@ -2001,6 +2001,8 @@ static int mkv_write_header(AVFormatContext *s)
    }
    if ((pb->seekable & AVIO_SEEKABLE_NORMAL) && mkv->reserve_cues_space) {
        mkv->cues_pos = avio_tell(pb);
+        if (mkv->reserve_cues_space == 1)
+            mkv->reserve_cues_space++;
        put_ebml_void(pb, mkv->reserve_cues_space);
    }